HttpServerKeepAliveHandler (Netty API Reference (4.1.22.Final))

java.lang.Object
- io.netty.channel.ChannelHandlerAdapter
- - io.netty.channel.ChannelInboundHandlerAdapter
  - - io.netty.channel.ChannelDuplexHandler
    - - io.netty.handler.codec.http.HttpServerKeepAliveHandler

All Implemented Interfaces:

ChannelHandler ， ChannelInboundHandler ， ChannelOutboundHandler
```
public class HttpServerKeepAliveHandler
extends ChannelDuplexHandler
```
HttpServerKeepAliveHandler在适当时帮助关闭持久连接。
如果服务器通道可以处理持续连接，则需要设置正确的“连接”标头。 HttpServerKeepAliveHandler将自动关闭对应于客户端请求关闭连接的任何LastHttpContent的通道，或者与该LastHttpContent关联的HttpResponse请求关闭连接或没有自定义消息长度。

由于HttpServerKeepAliveHandler预计HttpObject s应在HttpServerCodec之后添加，但在可能发送HttpResponse的任何其他处理程序之前添加。
```
  ChannelPipeline p = ...;
  ...
  p.addLast("serverCodec", new HttpServerCodec());
  p.addLast("httpKeepAlive", new HttpServerKeepAliveHandler());
  p.addLast("aggregator", new HttpObjectAggregator(1048576));
  ...
  p.addLast("handler", new HttpRequestHandler());
  
```

Nested Class Summary
- Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
  ChannelHandler.Sharable

构造方法摘要

构造方法
Constructor and Description
`HttpServerKeepAliveHandler()`

方法摘要

所有方法接口方法具体的方法
Modifier and Type	Method and Description
`void`	`channelRead(ChannelHandlerContext ctx, java.lang.Object msg)` 请致电`ChannelHandlerContext.fireChannelRead(Object)`转发至`ChannelPipeline`中的下一个`ChannelInboundHandler` 。
`void`	`write(ChannelHandlerContext ctx, java.lang.Object msg, ChannelPromise promise)` 请致电`ChannelOutboundInvoker.write(Object, ChannelPromise)`转发至`ChannelPipeline`中的下一个`ChannelOutboundHandler` 。

Methods inherited from class io.netty.channel.ChannelDuplexHandler
bind, close, connect, deregister, disconnect, flush, read

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler
exceptionCaught, handlerAdded, handlerRemoved

- 构造方法详细信息
  - HttpServerKeepAliveHandler
```
public HttpServerKeepAliveHandler()
```
- 方法详细信息
  - channelRead
```
public void channelRead(ChannelHandlerContext ctx,
                        java.lang.Object msg)
                 throws java.lang.Exception
```
    从类复制的描述： ChannelInboundHandlerAdapter
    
    致电ChannelHandlerContext.fireChannelRead(Object)转发到ChannelPipeline中的下一个ChannelInboundHandler 。子类可以重写此方法来更改行为。
    
    Specified by:
    
    channelRead在界面 ChannelInboundHandler
    
    重写：
    
    channelRead ChannelInboundHandlerAdapter
    
    异常
    
    java.lang.Exception
  - write
```
public void write(ChannelHandlerContext ctx,
                  java.lang.Object msg,
                  ChannelPromise promise)
           throws java.lang.Exception
```
    从类复制的描述： ChannelDuplexHandler
    
    请致电ChannelOutboundInvoker.write(Object, ChannelPromise)转发至ChannelPipeline中的下一个ChannelOutboundHandler 。子类可以重写此方法来更改行为。
    
    Specified by:
    
    write在界面 ChannelOutboundHandler
    
    重写：
    
    write ，等级 ChannelDuplexHandler
    
    参数
    
    ctx - 为其写入操作的ChannelHandlerContext
    
    msg - 写信息
    
    promise - 在操作完成后通知ChannelPromise
    
    异常
    
    java.lang.Exception - 发生错误时抛出

Class HttpServerKeepAliveHandler

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

构造方法摘要

方法摘要

Methods inherited from class io.netty.channel.ChannelDuplexHandler

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty.channel.ChannelHandler

构造方法详细信息

HttpServerKeepAliveHandler

方法详细信息

channelRead

write